28894480

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:296

約数の個数: 80

約数和(自身を含む): 70852608

約数和(自身を除く): 41958128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 61, 62, 80, 122, 124, 155, 191, 244, 248, 305, 310, 382, 488, 496, 610, 620, 764, 955, 976, 1220, 1240, 1528, 1891, 1910, 2440, 2480, 3056, 3782, 3820, 4880, 5921, 7564, 7640, 9455, 11651, 11842, 15128, 15280, 18910, 23302, 23684, 29605, 30256, 37820, 46604, 47368, 58255, 59210, 75640, 93208, 94736, 116510, 118420, 151280, 186416, 233020, 236840, 361181, 466040, 473680, 722362, 932080, 1444724, 1805905, 2889448, 3611810, 5778896, 7223620, 14447240, 28894480]

約数ペア:

[(1, 28894480), (2, 14447240), (4, 7223620), (5, 5778896), (8, 3611810), (10, 2889448), (16, 1805905), (20, 1444724), (31, 932080), (40, 722362), (61, 473680), (62, 466040), (80, 361181), (122, 236840), (124, 233020), (155, 186416), (191, 151280), (244, 118420), (248, 116510), (305, 94736), (310, 93208), (382, 75640), (488, 59210), (496, 58255), (610, 47368), (620, 46604), (764, 37820), (955, 30256), (976, 29605), (1220, 23684), (1240, 23302), (1528, 18910), (1891, 15280), (1910, 15128), (2440, 11842), (2480, 11651), (3056, 9455), (3782, 7640), (3820, 7564), (4880, 5921)]